71608551465 has 64 divisors (see below), whose sum is σ = 127115089920. Its totient is φ = 34133736960.

The previous prime is 71608551457. The next prime is 71608551557. The reversal of 71608551465 is 56415580617.

It is not a de Polignac number, because 71608551465 - 2³ = 71608551457 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2347149 + ... + 2377461.

It is an arithmetic number, because the mean of its divisors is an integer number (1986173280).

Almost surely, 2^71608551465 is an apocalyptic number.

It is an amenable number.

71608551465 is a deficient number, since it is larger than the sum of its proper divisors (55506538455).

71608551465 is a wasteful number, since it uses less digits than its factorization.

71608551465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30574.

The product of its (nonzero) digits is 1008000, while the sum is 48.

The spelling of 71608551465 in words is "seventy-one billion, six hundred eight million, five hundred fifty-one thousand, four hundred sixty-five".