1616597498880 has 1408 divisors, whose sum is σ = 7142912501760. Its totient is φ = 337615257600.

The previous prime is 1616597498869. The next prime is 1616597498897. The reversal of 1616597498880 is 888947956161.

1616597498880 is a `hidden beast` number, since 1 + 6 + 1 + 6 + 59 + 7 + 498 + 8 + 80 = 666.

It is a super-2 number, since 2×1616597498880² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 1616597498799 and 1616597498808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1346042280 + ... + 1346043480.

Almost surely, 2^{1616597498880} is an apocalyptic number.

1616597498880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1616597498880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3571456250880).

1616597498880 is an abundant number, since it is smaller than the sum of its proper divisors (5526315002880).

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

1616597498880 is a wasteful number, since it uses less digits than its factorization.

1616597498880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362 (or 1338 counting only the distinct ones).

The product of its (nonzero) digits is 209018880, while the sum is 72.

The spelling of 1616597498880 in words is "one trillion, six hundred sixteen billion, five hundred ninety-seven million, four hundred ninety-eight thousand, eight hundred eighty".