633420645465132 has 72 divisors (see below), whose sum is σ = 1910316232371120. Its totient is φ = 180977327274240.

The previous prime is 633420645465109. The next prime is 633420645465137. The reversal of 633420645465132 is 231564546024336.

633420645465132 is a `hidden beast` number, since 6 + 3 + 3 + 4 + 2 + 0 + 6 + 45 + 465 + 132 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (633420645465137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59846994469 + ... + 59847005052.

Almost surely, 2^{633420645465132} is an apocalyptic number.

It is an amenable number.

633420645465132 is an abundant number, since it is smaller than the sum of its proper divisors (1276895586905988).

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

633420645465132 is a wasteful number, since it uses less digits than its factorization.

633420645465132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119693999548 (or 119693999533 counting only the distinct ones).

The product of its (nonzero) digits is 37324800, while the sum is 54.

The spelling of 633420645465132 in words is "six hundred thirty-three trillion, four hundred twenty billion, six hundred forty-five million, four hundred sixty-five thousand, one hundred thirty-two".