20514102510542 has 16 divisors (see below), whose sum is σ = 32393936610960. Its totient is φ = 9716231921472.

The previous prime is 20514102510541. The next prime is 20514102510569. The reversal of 20514102510542 is 24501520141502.

It is a super-2 number, since 2×20514102510542² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20514102510499 and 20514102510508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20514102510541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26686343 + ... + 27444290.

It is an arithmetic number, because the mean of its divisors is an integer number (2024621038185).

Almost surely, 2^{20514102510542} is an apocalyptic number.

20514102510542 is a deficient number, since it is larger than the sum of its proper divisors (11879834100418).

20514102510542 is a wasteful number, since it uses less digits than its factorization.

20514102510542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54140627.

The product of its (nonzero) digits is 16000, while the sum is 32.

The spelling of 20514102510542 in words is "twenty trillion, five hundred fourteen billion, one hundred two million, five hundred ten thousand, five hundred forty-two".