49666406178 has 16 divisors (see below), whose sum is σ = 99368615520. Its totient is φ = 16549501536.

The previous prime is 49666406177. The next prime is 49666406183. The reversal of 49666406178 is 87160466694.

It is not an unprimeable number, because it can be changed into a prime (49666406171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1473748 + ... + 1507071.

It is an arithmetic number, because the mean of its divisors is an integer number (6210538470).

Almost surely, 2^49666406178 is an apocalyptic number.

49666406178 is an abundant number, since it is smaller than the sum of its proper divisors (49702209342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49666406178 is a wasteful number, since it uses less digits than its factorization.

49666406178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2983601.

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 49666406178 in words is "forty-nine billion, six hundred sixty-six million, four hundred six thousand, one hundred seventy-eight".