523151540064 has 36 divisors (see below), whose sum is σ = 1487712192876. Its totient is φ = 174383846592.

The previous prime is 523151540053. The next prime is 523151540071. The reversal of 523151540064 is 460045151325.

523151540064 is a `hidden beast` number, since 5 + 2 + 3 + 1 + 51 + 540 + 0 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 908248914 + ... + 908249489.

It is an arithmetic number, because the mean of its divisors is an integer number (41325338691).

Almost surely, 2^523151540064 is an apocalyptic number.

It is an amenable number.

523151540064 is an abundant number, since it is smaller than the sum of its proper divisors (964560652812).

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

523151540064 is a wasteful number, since it uses less digits than its factorization.

523151540064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816498419 (or 1816498408 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 523151540064 its reverse (460045151325), we get a palindrome (983196691389).

The spelling of 523151540064 in words is "five hundred twenty-three billion, one hundred fifty-one million, five hundred forty thousand, sixty-four".