20340554741 has 16 divisors (see below), whose sum is σ = 22071920640. Its totient is φ = 18633473280.

The previous prime is 20340554713. The next prime is 20340554749. The reversal of 20340554741 is 14745504302.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20340554741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20340554749) 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, 1065680 + ... + 1084598.

It is an arithmetic number, because the mean of its divisors is an integer number (1379495040).

Almost surely, 2^20340554741 is an apocalyptic number.

It is an amenable number.

20340554741 is a deficient number, since it is larger than the sum of its proper divisors (1731365899).

20340554741 is a wasteful number, since it uses less digits than its factorization.

20340554741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19556.

The product of its (nonzero) digits is 67200, while the sum is 35.

The spelling of 20340554741 in words is "twenty billion, three hundred forty million, five hundred fifty-four thousand, seven hundred forty-one".