20152744401 has 16 divisors (see below), whose sum is σ = 28933156800. Its totient is φ = 12430537728.

The previous prime is 20152744357. The next prime is 20152744457. The reversal of 20152744401 is 10444725102.

It is not a de Polignac number, because 20152744401 - 2⁷ = 20152744273 is a prime.

It is a super-2 number, since 2×20152744401² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20152744301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3345736 + ... + 3351753.

It is an arithmetic number, because the mean of its divisors is an integer number (1808322300).

Almost surely, 2^20152744401 is an apocalyptic number.

It is an amenable number.

20152744401 is a deficient number, since it is larger than the sum of its proper divisors (8780412399).

20152744401 is a wasteful number, since it uses less digits than its factorization.

20152744401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6697568.

The product of its (nonzero) digits is 8960, while the sum is 30.

The spelling of 20152744401 in words is "twenty billion, one hundred fifty-two million, seven hundred forty-four thousand, four hundred one".