672257920416 has 96 divisors (see below), whose sum is σ = 1775136384000. Its totient is φ = 222759429120.

The previous prime is 672257920393. The next prime is 672257920441. The reversal of 672257920416 is 614029752276.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×672257920416² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28390630 + ... + 28414298.

It is an arithmetic number, because the mean of its divisors is an integer number (18491004000).

Almost surely, 2^672257920416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672257920416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (887568192000).

672257920416 is an abundant number, since it is smaller than the sum of its proper divisors (1102878463584).

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

672257920416 is a wasteful number, since it uses less digits than its factorization.

672257920416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25422 (or 25414 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 672257920416 in words is "six hundred seventy-two billion, two hundred fifty-seven million, nine hundred twenty thousand, four hundred sixteen".