20466754531 has 2 divisors, whose sum is σ = 20466754532. Its totient is φ = 20466754530.

The previous prime is 20466754519. The next prime is 20466754537. The reversal of 20466754531 is 13545766402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20466754531 - 2²¹ = 20464657379 is a prime.

It is a super-3 number, since 3×20466754531³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (20466754537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10233377265 + 10233377266.

It is an arithmetic number, because the mean of its divisors is an integer number (10233377266).

Almost surely, 2^20466754531 is an apocalyptic number.

20466754531 is a deficient number, since it is larger than the sum of its proper divisors (1).

20466754531 is an equidigital number, since it uses as much as digits as its factorization.

20466754531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 20466754531 in words is "twenty billion, four hundred sixty-six million, seven hundred fifty-four thousand, five hundred thirty-one".