36663709440 has 72 divisors (see below), whose sum is σ = 117094734288. Its totient is φ = 9776988160.

The previous prime is 36663709427. The next prime is 36663709441. The reversal of 36663709440 is 4490736663.

It is a super-2 number, since 2×36663709440² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 36663709440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36663709441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4770081 + ... + 4777760.

It is an arithmetic number, because the mean of its divisors is an integer number (1626315754).

Almost surely, 2^36663709440 is an apocalyptic number.

36663709440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

36663709440 is an abundant number, since it is smaller than the sum of its proper divisors (80431024848).

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

36663709440 is an equidigital number, since it uses as much as digits as its factorization.

36663709440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9547865 (or 9547851 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 48.

The spelling of 36663709440 in words is "thirty-six billion, six hundred sixty-three million, seven hundred nine thousand, four hundred forty".