625161212610 has 64 divisors (see below), whose sum is σ = 1648733180544. Its totient is φ = 150447987200.

The previous prime is 625161212587. The next prime is 625161212629. The reversal of 625161212610 is 16212161526.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6868761 + ... + 6959180.

It is an arithmetic number, because the mean of its divisors is an integer number (25761455946).

Almost surely, 2^625161212610 is an apocalyptic number.

625161212610 is an abundant number, since it is smaller than the sum of its proper divisors (1023571967934).

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

625161212610 is a wasteful number, since it uses less digits than its factorization.

625161212610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13828099.

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 625161212610 in words is "six hundred twenty-five billion, one hundred sixty-one million, two hundred twelve thousand, six hundred ten".