16115061516 has 24 divisors (see below), whose sum is σ = 37622067504. Its totient is φ = 5368793280.

The previous prime is 16115061497. The next prime is 16115061541. The reversal of 16115061516 is 61516051161.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338475 + ... + 383138.

It is an arithmetic number, because the mean of its divisors is an integer number (1567586146).

Almost surely, 2^16115061516 is an apocalyptic number.

It is an amenable number.

16115061516 is an abundant number, since it is smaller than the sum of its proper divisors (21507005988).

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

16115061516 is a wasteful number, since it uses less digits than its factorization.

16115061516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723481 (or 723479 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 33.

The spelling of 16115061516 in words is "sixteen billion, one hundred fifteen million, sixty-one thousand, five hundred sixteen".