252151220004 has 24 divisors (see below), whose sum is σ = 588370805568. Its totient is φ = 84047841120.

The previous prime is 252151219987. The next prime is 252151220051. The reversal of 252151220004 is 400022151252.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112194 + ... + 718950.

It is an arithmetic number, because the mean of its divisors is an integer number (24515450232).

Almost surely, 2^252151220004 is an apocalyptic number.

It is an amenable number.

252151220004 is an abundant number, since it is smaller than the sum of its proper divisors (336219585564).

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

252151220004 is a wasteful number, since it uses less digits than its factorization.

252151220004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641395 (or 641393 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 252151220004 its reverse (400022151252), we get a palindrome (652173371256).

The spelling of 252151220004 in words is "two hundred fifty-two billion, one hundred fifty-one million, two hundred twenty thousand, four".