91671806002 has 16 divisors (see below), whose sum is σ = 158677414272. Its totient is φ = 38906480160.

The previous prime is 91671805997. The next prime is 91671806021. The reversal of 91671806002 is 20060817619.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31784899 + ... + 31787782.

It is an arithmetic number, because the mean of its divisors is an integer number (9917338392).

Almost surely, 2^91671806002 is an apocalyptic number.

91671806002 is a deficient number, since it is larger than the sum of its proper divisors (67005608270).

91671806002 is a wasteful number, since it uses less digits than its factorization.

91671806002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63572793.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 91671806002 in words is "ninety-one billion, six hundred seventy-one million, eight hundred six thousand, two".