400146536650 has 36 divisors (see below), whose sum is σ = 865786450518. Its totient is φ = 137193097440.

The previous prime is 400146536617. The next prime is 400146536663. The reversal of 400146536650 is 56635641004.

It can be written as a sum of positive squares in 3 ways, for example, as 247977108729 + 152169427921 = 497973^2 + 390089^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 81660109 + ... + 81665008.

Almost surely, 2^400146536650 is an apocalyptic number.

400146536650 is an abundant number, since it is smaller than the sum of its proper divisors (465639913868).

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

400146536650 is a wasteful number, since it uses less digits than its factorization.

400146536650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163325143 (or 163325131 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 400146536650 in words is "four hundred billion, one hundred forty-six million, five hundred thirty-six thousand, six hundred fifty".