16507456315356 has 96 divisors (see below), whose sum is σ = 41589401011200. Its totient is φ = 5080362327040.

The previous prime is 16507456315313. The next prime is 16507456315387. The reversal of 16507456315356 is 65351365470561.

It is a happy number.

It is a super-2 number, since 2×16507456315356² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16507456315296 and 16507456315305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29101780 + ... + 29663588.

It is an arithmetic number, because the mean of its divisors is an integer number (433222927200).

Almost surely, 2^{16507456315356} 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 16507456315356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20794700505600).

16507456315356 is an abundant number, since it is smaller than the sum of its proper divisors (25081944695844).

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

16507456315356 is a wasteful number, since it uses less digits than its factorization.

16507456315356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565539 (or 565537 counting only the distinct ones).

The product of its (nonzero) digits is 34020000, while the sum is 57.

The spelling of 16507456315356 in words is "sixteen trillion, five hundred seven billion, four hundred fifty-six million, three hundred fifteen thousand, three hundred fifty-six".