1516081964 has 12 divisors (see below), whose sum is σ = 2809210824. Its totient is φ = 713450304.

The previous prime is 1516081949. The next prime is 1516081979. The reversal of 1516081964 is 4691806151.

It is an interprime number because it is at equal distance from previous prime (1516081949) and next prime (1516081979).

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, 11147594 + ... + 11147729.

It is an arithmetic number, because the mean of its divisors is an integer number (234100902).

Almost surely, 2^1516081964 is an apocalyptic number.

It is an amenable number.

1516081964 is a deficient number, since it is larger than the sum of its proper divisors (1293128860).

1516081964 is a wasteful number, since it uses less digits than its factorization.

1516081964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22295344 (or 22295342 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 1516081964 is about 38936.8972056069. The cubic root of 1516081964 is about 1148.7906540852.

The spelling of 1516081964 in words is "one billion, five hundred sixteen million, eighty-one thousand, nine hundred sixty-four".