1620054000396 has 72 divisors (see below), whose sum is σ = 4601892553440. Its totient is φ = 476805187584.

The previous prime is 1620054000391. The next prime is 1620054000449. The reversal of 1620054000396 is 6930004500261.

It is a happy number.

1620054000396 is a `hidden beast` number, since 1 + 6 + 20 + 0 + 540 + 0 + 0 + 3 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1620054000396.

It is not an unprimeable number, because it can be changed into a prime (1620054000391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75242581 + ... + 75264108.

Almost surely, 2^{1620054000396} is an apocalyptic number.

It is an amenable number.

1620054000396 is an abundant number, since it is smaller than the sum of its proper divisors (2981838553044).

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

1620054000396 is a wasteful number, since it uses less digits than its factorization.

1620054000396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150506735 (or 150506730 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 1620054000396 in words is "one trillion, six hundred twenty billion, fifty-four million, three hundred ninety-six", and thus it is an aban number.