1620975150916 has 12 divisors (see below), whose sum is σ = 3094588924560. Its totient is φ = 736806886760.

The previous prime is 1620975150863. The next prime is 1620975150943. The reversal of 1620975150916 is 6190515790261.

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, 18420172126 + ... + 18420172213.

It is an arithmetic number, because the mean of its divisors is an integer number (257882410380).

Almost surely, 2^{1620975150916} is an apocalyptic number.

It is an amenable number.

1620975150916 is a deficient number, since it is larger than the sum of its proper divisors (1473613773644).

1620975150916 is a wasteful number, since it uses less digits than its factorization.

1620975150916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36840344354 (or 36840344352 counting only the distinct ones).

The product of its (nonzero) digits is 1020600, while the sum is 52.

The spelling of 1620975150916 in words is "one trillion, six hundred twenty billion, nine hundred seventy-five million, one hundred fifty thousand, nine hundred sixteen".