162020026557 has 24 divisors (see below), whose sum is σ = 235221924600. Its totient is φ = 107463426048.

The previous prime is 162020026501. The next prime is 162020026613. The reversal of 162020026557 is 755620020261.

162020026557 is a `hidden beast` number, since 1 + 62 + 0 + 20 + 0 + 26 + 557 = 666.

It is an interprime number because it is at equal distance from previous prime (162020026501) and next prime (162020026613).

It can be written as a sum of positive squares in 4 ways, for example, as 565535961 + 161454490596 = 23781^2 + 401814^2 .

It is not a de Polignac number, because 162020026557 - 2³⁴ = 144840157373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162020026457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2876053 + ... + 2931845.

It is an arithmetic number, because the mean of its divisors is an integer number (9800913525).

Almost surely, 2^162020026557 is an apocalyptic number.

It is an amenable number.

162020026557 is a deficient number, since it is larger than the sum of its proper divisors (73201898043).

162020026557 is a wasteful number, since it uses less digits than its factorization.

162020026557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57437 (or 57434 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 162020026557 in words is "one hundred sixty-two billion, twenty million, twenty-six thousand, five hundred fifty-seven".