16773502401 has 12 divisors (see below), whose sum is σ = 24230134500. Its totient is φ = 11181530880.

The previous prime is 16773502397. The next prime is 16773502429. The reversal of 16773502401 is 10420537761.

It is a happy number.

16773502401 is a `hidden beast` number, since 1 + 67 + 7 + 350 + 240 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6889166001 + 9884336400 = 83001^2 + 99420^2 .

It is not a de Polignac number, because 16773502401 - 2² = 16773502397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16773502001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82725 + ... + 200973.

It is an arithmetic number, because the mean of its divisors is an integer number (2019177875).

Almost surely, 2^16773502401 is an apocalyptic number.

It is an amenable number.

16773502401 is a deficient number, since it is larger than the sum of its proper divisors (7456632099).

16773502401 is a wasteful number, since it uses less digits than its factorization.

16773502401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134016 (or 134013 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The spelling of 16773502401 in words is "sixteen billion, seven hundred seventy-three million, five hundred two thousand, four hundred one".