1620011696 has 20 divisors (see below), whose sum is σ = 3139595184. Its totient is φ = 809793600.

The previous prime is 1620011641. The next prime is 1620011741. The reversal of 1620011696 is 6961100261.

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, 62981 + ... + 84891.

Almost surely, 2^1620011696 is an apocalyptic number.

1620011696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1620011696 is a deficient number, since it is larger than the sum of its proper divisors (1519583488).

1620011696 is a wasteful number, since it uses less digits than its factorization.

1620011696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26540 (or 26534 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1620011696 is about 40249.3688894621. The cubic root of 1620011696 is about 1174.4631187816.

The spelling of 1620011696 in words is "one billion, six hundred twenty million, eleven thousand, six hundred ninety-six".