16115571534402 has 48 divisors (see below), whose sum is σ = 35264792803968. Its totient is φ = 5318367674400.

The previous prime is 16115571534383. The next prime is 16115571534527. The reversal of 16115571534402 is 20443517551161.

16115571534402 is a `hidden beast` number, since 1 + 6 + 1 + 1 + 5 + 5 + 71 + 534 + 40 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32886193 + ... + 33372635.

It is an arithmetic number, because the mean of its divisors is an integer number (734683183416).

Almost surely, 2^{16115571534402} is an apocalyptic number.

16115571534402 is an abundant number, since it is smaller than the sum of its proper divisors (19149221269566).

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

16115571534402 is a wasteful number, since it uses less digits than its factorization.

16115571534402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504775 (or 504772 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The spelling of 16115571534402 in words is "sixteen trillion, one hundred fifteen billion, five hundred seventy-one million, five hundred thirty-four thousand, four hundred two".