451661101010 has 96 divisors (see below), whose sum is σ = 959671767600. Its totient is φ = 152575653888.

The previous prime is 451661100983. The next prime is 451661101049. The reversal of 451661101010 is 10101166154.

It can be written as a sum of positive squares in 8 ways, for example, as 160437899209 + 291223201801 = 400547^2 + 539651^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37516712 + ... + 37528748.

Almost surely, 2^451661101010 is an apocalyptic number.

451661101010 is an abundant number, since it is smaller than the sum of its proper divisors (508010666590).

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

451661101010 is a wasteful number, since it uses less digits than its factorization.

451661101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13180 (or 13173 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

Adding to 451661101010 its reverse (10101166154), we get a palindrome (461762267164).

The spelling of 451661101010 in words is "four hundred fifty-one billion, six hundred sixty-one million, one hundred one thousand, ten".