365525664 has 192 divisors, whose sum is σ = 1149426432. Its totient is φ = 99532800.

The previous prime is 365525663. The next prime is 365525711. The reversal of 365525664 is 466525563.

It is a super-2 number, since 2×365525664² = 267218022085281792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (365525663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1516584 + ... + 1516824.

It is an arithmetic number, because the mean of its divisors is an integer number (5986596).

Almost surely, 2^365525664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 365525664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (574713216).

365525664 is an abundant number, since it is smaller than the sum of its proper divisors (783900768).

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

365525664 is a wasteful number, since it uses less digits than its factorization.

365525664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 351 counting only the distinct ones).

The product of its digits is 648000, while the sum is 42.

The square root of 365525664 is about 19118.7254805335. The cubic root of 365525664 is about 714.9998624219. Note that the first 3 decimals are identical.

The spelling of 365525664 in words is "three hundred sixty-five million, five hundred twenty-five thousand, six hundred sixty-four".