45161226666 has 12 divisors (see below), whose sum is σ = 97849324482. Its totient is φ = 15053742216.

The previous prime is 45161226637. The next prime is 45161226667. The reversal of 45161226666 is 66662216154.

It can be written as a sum of positive squares in only one way, i.e., 42855210225 + 2306016441 = 207015^2 + 48021^2 .

It is not an unprimeable number, because it can be changed into a prime (45161226667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1254478501 + ... + 1254478536.

Almost surely, 2^45161226666 is an apocalyptic number.

45161226666 is an abundant number, since it is smaller than the sum of its proper divisors (52688097816).

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

45161226666 is a wasteful number, since it uses less digits than its factorization.

45161226666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508957045 (or 2508957042 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The spelling of 45161226666 in words is "forty-five billion, one hundred sixty-one million, two hundred twenty-six thousand, six hundred sixty-six".