146638268990 has 16 divisors (see below), whose sum is σ = 269564818752. Its totient is φ = 57407322144.

The previous prime is 146638268977. The next prime is 146638269007. The reversal of 146638268990 is 99862836641.

It is a congruent number.

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, 155997689 + ... + 155998628.

It is an arithmetic number, because the mean of its divisors is an integer number (16847801172).

Almost surely, 2^146638268990 is an apocalyptic number.

146638268990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

146638268990 is a deficient number, since it is larger than the sum of its proper divisors (122926549762).

146638268990 is a wasteful number, since it uses less digits than its factorization.

146638268990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311996371.

The product of its (nonzero) digits is 26873856, while the sum is 62.

The spelling of 146638268990 in words is "one hundred forty-six billion, six hundred thirty-eight million, two hundred sixty-eight thousand, nine hundred ninety".