20157655675102 has 24 divisors (see below), whose sum is σ = 34984361097000. Its totient is φ = 8680330193040.

The previous prime is 20157655675099. The next prime is 20157655675127.

It is a happy number.

20157655675102 is nontrivially palindromic in base 10.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 20157655675102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2191997977 + ... + 2192007172.

It is an arithmetic number, because the mean of its divisors is an integer number (1457681712375).

Almost surely, 2^{20157655675102} is an apocalyptic number.

20157655675102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20157655675102 is a deficient number, since it is larger than the sum of its proper divisors (14826705421898).

20157655675102 is a wasteful number, since it uses less digits than its factorization.

20157655675102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4384005192 (or 4384005181 counting only the distinct ones).

The product of its (nonzero) digits is 4410000, while the sum is 52.

The spelling of 20157655675102 in words is "twenty trillion, one hundred fifty-seven billion, six hundred fifty-five million, six hundred seventy-five thousand, one hundred two".