20776340741 has 16 divisors (see below), whose sum is σ = 22878374400. Its totient is φ = 18747280128.

The previous prime is 20776340701. The next prime is 20776340743. The reversal of 20776340741 is 14704367702.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20776340741 is a prime.

It is a super-2 number, since 2×20776340741² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20776340743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492365 + ... + 532893.

It is an arithmetic number, because the mean of its divisors is an integer number (1429898400).

Almost surely, 2^20776340741 is an apocalyptic number.

It is an amenable number.

20776340741 is a deficient number, since it is larger than the sum of its proper divisors (2102033659).

20776340741 is a wasteful number, since it uses less digits than its factorization.

20776340741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41428.

The product of its (nonzero) digits is 197568, while the sum is 41.

The spelling of 20776340741 in words is "twenty billion, seven hundred seventy-six million, three hundred forty thousand, seven hundred forty-one".