16420164365 has 16 divisors (see below), whose sum is σ = 21717097920. Its totient is φ = 11818821120.

The previous prime is 16420164361. The next prime is 16420164373. The reversal of 16420164365 is 56346102461.

It is not a de Polignac number, because 16420164365 - 2² = 16420164361 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16420164361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1533575 + ... + 1544244.

It is an arithmetic number, because the mean of its divisors is an integer number (1357318620).

Almost surely, 2^16420164365 is an apocalyptic number.

It is an amenable number.

16420164365 is a deficient number, since it is larger than the sum of its proper divisors (5296933555).

16420164365 is a wasteful number, since it uses less digits than its factorization.

16420164365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3077932.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 16420164365 in words is "sixteen billion, four hundred twenty million, one hundred sixty-four thousand, three hundred sixty-five".