20162257401 has 64 divisors (see below), whose sum is σ = 33723131904. Its totient is φ = 10538035200.

The previous prime is 20162257343. The next prime is 20162257421. The reversal of 20162257401 is 10475226102.

It is not a de Polignac number, because 20162257401 - 2⁷ = 20162257273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20162257421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 400521 + ... + 448041.

It is an arithmetic number, because the mean of its divisors is an integer number (526923936).

Almost surely, 2^20162257401 is an apocalyptic number.

It is an amenable number.

20162257401 is a deficient number, since it is larger than the sum of its proper divisors (13560874503).

20162257401 is a wasteful number, since it uses less digits than its factorization.

20162257401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47614.

The product of its (nonzero) digits is 6720, while the sum is 30.

The spelling of 20162257401 in words is "twenty billion, one hundred sixty-two million, two hundred fifty-seven thousand, four hundred one".