162021383757 has 20 divisors (see below), whose sum is σ = 242049968160. Its totient is φ = 108006211944.

The previous prime is 162021383737. The next prime is 162021383789. The reversal of 162021383757 is 757383120261.

162021383757 is a `hidden beast` number, since 1 + 62 + 0 + 213 + 8 + 375 + 7 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-162021383757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162021383737) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1141744 + ... + 1275782.

It is an arithmetic number, because the mean of its divisors is an integer number (12102498408).

Almost surely, 2^162021383757 is an apocalyptic number.

It is an amenable number.

162021383757 is a deficient number, since it is larger than the sum of its proper divisors (80028584403).

162021383757 is a wasteful number, since it uses less digits than its factorization.

162021383757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148974 (or 148965 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 162021383757 in words is "one hundred sixty-two billion, twenty-one million, three hundred eighty-three thousand, seven hundred fifty-seven".