20460775531357 has 8 divisors (see below), whose sum is σ = 24614466804800. Its totient is φ = 16614765093024.

The previous prime is 20460775531337. The next prime is 20460775531379. The reversal of 20460775531357 is 75313557706402.

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

It is a de Polignac number, because none of the positive numbers 2^k-20460775531357 is a prime.

It is a super-2 number, since 2×20460775531357² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20460775531298 and 20460775531307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20460775531337) 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, 76920208632 + ... + 76920208897.

It is an arithmetic number, because the mean of its divisors is an integer number (3076808350600).

Almost surely, 2^{20460775531357} is an apocalyptic number.

It is an amenable number.

20460775531357 is a deficient number, since it is larger than the sum of its proper divisors (4153691273443).

20460775531357 is a wasteful number, since it uses less digits than its factorization.

20460775531357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153840417555.

The product of its (nonzero) digits is 18522000, while the sum is 55.

The spelling of 20460775531357 in words is "twenty trillion, four hundred sixty billion, seven hundred seventy-five million, five hundred thirty-one thousand, three hundred fifty-seven".