1616657231052 has 72 divisors (see below), whose sum is σ = 4186480749360. Its totient is φ = 525709716480.

The previous prime is 1616657231051. The next prime is 1616657231069. The reversal of 1616657231052 is 2501327566161.

1616657231052 is a `hidden beast` number, since 1 + 6 + 1 + 66 + 572 + 3 + 10 + 5 + 2 = 666.

It is a super-2 number, since 2×1616657231052² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1616657230989 and 1616657231007.

It is not an unprimeable number, because it can be changed into a prime (1616657231051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39585099 + ... + 39625917.

Almost surely, 2^{1616657231052} is an apocalyptic number.

1616657231052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1616657231052 is an abundant number, since it is smaller than the sum of its proper divisors (2569823518308).

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

1616657231052 is a wasteful number, since it uses less digits than its factorization.

1616657231052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67703 (or 67698 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 1616657231052 in words is "one trillion, six hundred sixteen billion, six hundred fifty-seven million, two hundred thirty-one thousand, fifty-two".