45954068161 has 5 divisors (see below), whose sum is σ = 46053535841. Its totient is φ = 45854815314.

The previous prime is 45954068141. The next prime is 45954068197. The reversal of 45954068161 is 16186045954.

It is a happy number.

The square root of 45954068161 is 214369.

It is a perfect power (a square, a biquadrate), and thus also a powerful number.

45954068161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45954068161 - 2⁷ = 45954068033 is a prime.

It is a super-2 number, since 2×45954068161² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45954068141) by changing a digit.

It is a polite number, since it can be written in 4 ways as a sum of consecutive naturals, for example, 99252616 + ... + 99253078.

Almost surely, 2^45954068161 is an apocalyptic number.

45954068161 is the 214369-th square number.

45954068161 is the 107185-th centered octagonal number.

It is an amenable number.

45954068161 is a deficient number, since it is larger than the sum of its proper divisors (99467680).

45954068161 is an frugal number, since it uses more digits than its factorization.

45954068161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 49.

Multiplying 45954068161 by its sum of digits (49), we get a square (2251749339889 = 1500583²).

The spelling of 45954068161 in words is "forty-five billion, nine hundred fifty-four million, sixty-eight thousand, one hundred sixty-one".