20745901461 has 16 divisors (see below), whose sum is σ = 27743385600. Its totient is φ = 13789561968.

The previous prime is 20745901433. The next prime is 20745901483. The reversal of 20745901461 is 16410954702.

It is not a de Polignac number, because 20745901461 - 2¹¹ = 20745899413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20745901411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1803450 + ... + 1814916.

It is an arithmetic number, because the mean of its divisors is an integer number (1733961600).

Almost surely, 2^20745901461 is an apocalyptic number.

It is an amenable number.

20745901461 is a deficient number, since it is larger than the sum of its proper divisors (6997484139).

20745901461 is a wasteful number, since it uses less digits than its factorization.

20745901461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13208.

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 20745901461 in words is "twenty billion, seven hundred forty-five million, nine hundred one thousand, four hundred sixty-one".