201415145664 has 28 divisors (see below), whose sum is σ = 532910906744. Its totient is φ = 67138381824.

The previous prime is 201415145639. The next prime is 201415145677. The reversal of 201415145664 is 466541514102.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524518417 + ... + 524518800.

Almost surely, 2^201415145664 is an apocalyptic number.

201415145664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

201415145664 is an abundant number, since it is smaller than the sum of its proper divisors (331495761080).

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

201415145664 is a wasteful number, since it uses less digits than its factorization.

201415145664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049037232 (or 1049037222 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

Adding to 201415145664 its reverse (466541514102), we get a palindrome (667956659766).

The spelling of 201415145664 in words is "two hundred one billion, four hundred fifteen million, one hundred forty-five thousand, six hundred sixty-four".