1620125598642 has 32 divisors (see below), whose sum is σ = 3283226369280. Its totient is φ = 532925399760.

The previous prime is 1620125598601. The next prime is 1620125598659. The reversal of 1620125598642 is 2468955210261.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5616928 + ... + 5898315.

It is an arithmetic number, because the mean of its divisors is an integer number (102600824040).

Almost surely, 2^{1620125598642} is an apocalyptic number.

1620125598642 is an abundant number, since it is smaller than the sum of its proper divisors (1663100770638).

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

1620125598642 is a wasteful number, since it uses less digits than its factorization.

1620125598642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11515558.

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 1620125598642 in words is "one trillion, six hundred twenty billion, one hundred twenty-five million, five hundred ninety-eight thousand, six hundred forty-two".