7216620493446 has 864 divisors, whose sum is σ = 22141049269248. Its totient is φ = 1744109055360.

The previous prime is 7216620493373. The next prime is 7216620493519. The reversal of 7216620493446 is 6443940266127.

7216620493446 is a `hidden beast` number, since 7 + 2 + 1 + 6 + 620 + 4 + 9 + 3 + 4 + 4 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (7216620493373) and next prime (7216620493519).

It is a super-2 number, since 2×7216620493446² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 7216620493392 and 7216620493401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 3464531121 + ... + 3464533203.

It is an arithmetic number, because the mean of its divisors is an integer number (25626214432).

Almost surely, 2^{7216620493446} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7216620493446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11070524634624).

7216620493446 is an abundant number, since it is smaller than the sum of its proper divisors (14924428775802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7216620493446 is a wasteful number, since it uses less digits than its factorization.

7216620493446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196 (or 2158 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 54.

The spelling of 7216620493446 in words is "seven trillion, two hundred sixteen billion, six hundred twenty million, four hundred ninety-three thousand, four hundred forty-six".