20751165102 has 8 divisors (see below), whose sum is σ = 41502330216. Its totient is φ = 6917055032.

The previous prime is 20751165059. The next prime is 20751165103. The reversal of 20751165102 is 20156115702.

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

20751165102 is an admirable number.

It is a super-2 number, since 2×20751165102² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20751165102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20751165103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1729263753 + ... + 1729263764.

It is an arithmetic number, because the mean of its divisors is an integer number (5187791277).

Almost surely, 2^20751165102 is an apocalyptic number.

20751165102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20751165102 is a wasteful number, since it uses less digits than its factorization.

20751165102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3458527522.

The product of its (nonzero) digits is 4200, while the sum is 30.

The spelling of 20751165102 in words is "twenty billion, seven hundred fifty-one million, one hundred sixty-five thousand, one hundred two".