363999599964 has 144 divisors (see below), whose sum is σ = 1235392704000. Its totient is φ = 87272622720.

The previous prime is 363999599923. The next prime is 363999599969. The reversal of 363999599964 is 469995999363.

It is a happy number.

363999599964 is a `hidden beast` number, since 36 + 399 + 9 + 59 + 99 + 64 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (363999599969) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5014464 + ... + 5086535.

It is an arithmetic number, because the mean of its divisors is an integer number (8579116000).

Almost surely, 2^363999599964 is an apocalyptic number.

It is an amenable number.

363999599964 is an abundant number, since it is smaller than the sum of its proper divisors (871393104036).

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

363999599964 is a wasteful number, since it uses less digits than its factorization.

363999599964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10101040 (or 10101035 counting only the distinct ones).

The product of its digits is 3443737680, while the sum is 81.

The spelling of 363999599964 in words is "three hundred sixty-three billion, nine hundred ninety-nine million, five hundred ninety-nine thousand, nine hundred sixty-four".