20757162406 has 8 divisors (see below), whose sum is σ = 32489471664. Its totient is φ = 9927338520.

The previous prime is 20757162353. The next prime is 20757162407. The reversal of 20757162406 is 60426175702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20757162406² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20757162407) 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 3 ways as a sum of consecutive naturals, for example, 225621285 + ... + 225621376.

It is an arithmetic number, because the mean of its divisors is an integer number (4061183958).

Almost surely, 2^20757162406 is an apocalyptic number.

20757162406 is a deficient number, since it is larger than the sum of its proper divisors (11732309258).

20757162406 is a wasteful number, since it uses less digits than its factorization.

20757162406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451242686.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 20757162406 in words is "twenty billion, seven hundred fifty-seven million, one hundred sixty-two thousand, four hundred six".