252150321654 has 160 divisors (see below), whose sum is σ = 745857040896. Its totient is φ = 61640974080.

The previous prime is 252150321653. The next prime is 252150321701. The reversal of 252150321654 is 456123051252.

252150321654 is a `hidden beast` number, since 2 + 521 + 50 + 3 + 21 + 65 + 4 = 666.

It is a super-2 number, since 2×252150321654² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252150321653) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 382474 + ... + 806589.

Almost surely, 2^252150321654 is an apocalyptic number.

252150321654 is an abundant number, since it is smaller than the sum of its proper divisors (493706719242).

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

252150321654 is a wasteful number, since it uses less digits than its factorization.

252150321654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189112 (or 1189103 counting only the distinct ones).

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

The spelling of 252150321654 in words is "two hundred fifty-two billion, one hundred fifty million, three hundred twenty-one thousand, six hundred fifty-four".