407172472066 has 4 divisors (see below), whose sum is σ = 610758708102. Its totient is φ = 203586236032.

The previous prime is 407172472043. The next prime is 407172472111. The reversal of 407172472066 is 660274271704.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 309381800841 + 97790671225 = 556221^2 + 312715^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101793118015 + ... + 101793118018.

Almost surely, 2^407172472066 is an apocalyptic number.

407172472066 is a deficient number, since it is larger than the sum of its proper divisors (203586236036).

407172472066 is a wasteful number, since it uses less digits than its factorization.

407172472066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203586236035.

The product of its (nonzero) digits is 790272, while the sum is 46.

The spelling of 407172472066 in words is "four hundred seven billion, one hundred seventy-two million, four hundred seventy-two thousand, sixty-six".