601138900138 has 16 divisors (see below), whose sum is σ = 1031007466944. Its totient is φ = 257510047680.

The previous prime is 601138900127. The next prime is 601138900247. The reversal of 601138900138 is 831009831106.

It is a super-2 number, since 2×601138900138² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 601138900138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10044895 + ... + 10104562.

It is an arithmetic number, because the mean of its divisors is an integer number (64437966684).

Almost surely, 2^601138900138 is an apocalyptic number.

601138900138 is a deficient number, since it is larger than the sum of its proper divisors (429868566806).

601138900138 is a wasteful number, since it uses less digits than its factorization.

601138900138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20151597.

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 601138900138 in words is "six hundred one billion, one hundred thirty-eight million, nine hundred thousand, one hundred thirty-eight".