20612156750 has 16 divisors (see below), whose sum is σ = 38585957904. Its totient is φ = 8244862600.

The previous prime is 20612156743. The next prime is 20612156759. The reversal of 20612156750 is 5765121602.

It is a super-2 number, since 2×20612156750² (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 20612156750.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20612156759) 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, 41224064 + ... + 41224563.

It is an arithmetic number, because the mean of its divisors is an integer number (2411622369).

Almost surely, 2^20612156750 is an apocalyptic number.

20612156750 is a deficient number, since it is larger than the sum of its proper divisors (17973801154).

20612156750 is an equidigital number, since it uses as much as digits as its factorization.

20612156750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82448644 (or 82448634 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 20612156750 in words is "twenty billion, six hundred twelve million, one hundred fifty-six thousand, seven hundred fifty".