16402402545 has 32 divisors (see below), whose sum is σ = 26696684160. Its totient is φ = 8597245440.

The previous prime is 16402402531. The next prime is 16402402567. The reversal of 16402402545 is 54520420461.

It is not a de Polignac number, because 16402402545 - 2¹² = 16402398449 is a prime.

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, 1172482 + ... + 1186388.

It is an arithmetic number, because the mean of its divisors is an integer number (834271380).

Almost surely, 2^16402402545 is an apocalyptic number.

16402402545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16402402545 is a deficient number, since it is larger than the sum of its proper divisors (10294281615).

16402402545 is a wasteful number, since it uses less digits than its factorization.

16402402545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15265.

The product of its (nonzero) digits is 38400, while the sum is 33.

The spelling of 16402402545 in words is "sixteen billion, four hundred two million, four hundred two thousand, five hundred forty-five".