20953830177452 has 12 divisors (see below), whose sum is σ = 37933658080080. Its totient is φ = 10115642154576.

The previous prime is 20953830177437. The next prime is 20953830177491. The reversal of 20953830177452 is 25477103835902.

It is a super-2 number, since 2×20953830177452² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90318233408 + ... + 90318233639.

It is an arithmetic number, because the mean of its divisors is an integer number (3161138173340).

Almost surely, 2^{20953830177452} is an apocalyptic number.

It is an amenable number.

20953830177452 is a deficient number, since it is larger than the sum of its proper divisors (16979827902628).

20953830177452 is a wasteful number, since it uses less digits than its factorization.

20953830177452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180636467080 (or 180636467078 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 56.

The spelling of 20953830177452 in words is "twenty trillion, nine hundred fifty-three billion, eight hundred thirty million, one hundred seventy-seven thousand, four hundred fifty-two".