16555362765 has 32 divisors (see below), whose sum is σ = 26720343936. Its totient is φ = 8752423680.

The previous prime is 16555362751. The next prime is 16555362779. The reversal of 16555362765 is 56726355561.

It is an interprime number because it is at equal distance from previous prime (16555362751) and next prime (16555362779).

It is not a de Polignac number, because 16555362765 - 2²⁸ = 16286927309 is a prime.

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, 1986387 + ... + 1994703.

It is an arithmetic number, because the mean of its divisors is an integer number (835010748).

Almost surely, 2^16555362765 is an apocalyptic number.

16555362765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16555362765 is a deficient number, since it is larger than the sum of its proper divisors (10164981171).

16555362765 is a wasteful number, since it uses less digits than its factorization.

16555362765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9469.

The product of its digits is 5670000, while the sum is 51.

The spelling of 16555362765 in words is "sixteen billion, five hundred fifty-five million, three hundred sixty-two thousand, seven hundred sixty-five".