1620624545044 has 12 divisors (see below), whose sum is σ = 2902048604224. Its totient is φ = 791467800984.

The previous prime is 1620624545027. The next prime is 1620624545069. The reversal of 1620624545044 is 4405454260261.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4711117692 + ... + 4711118035.

Almost surely, 2^{1620624545044} is an apocalyptic number.

It is an amenable number.

1620624545044 is a deficient number, since it is larger than the sum of its proper divisors (1281424059180).

1620624545044 is a wasteful number, since it uses less digits than its factorization.

1620624545044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9422235774 (or 9422235772 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 43.

The spelling of 1620624545044 in words is "one trillion, six hundred twenty billion, six hundred twenty-four million, five hundred forty-five thousand, forty-four".