105400402650 has 72 divisors (see below), whose sum is σ = 283239369660. Its totient is φ = 28100459520.

The previous prime is 105400402621. The next prime is 105400402661. The reversal of 105400402650 is 56204004501.

105400402650 is a `hidden beast` number, since 1 + 0 + 5 + 4 + 0 + 0 + 4 + 0 + 2 + 650 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 50020664409 + 55379738241 = 223653^2 + 235329^2 .

It is a super-2 number, since 2×105400402650² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2185194 + ... + 2232906.

Almost surely, 2^105400402650 is an apocalyptic number.

105400402650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105400402650 is an abundant number, since it is smaller than the sum of its proper divisors (177838967010).

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

105400402650 is a wasteful number, since it uses less digits than its factorization.

105400402650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52640 (or 52632 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The spelling of 105400402650 in words is "one hundred five billion, four hundred million, four hundred two thousand, six hundred fifty".