20983464258 has 16 divisors (see below), whose sum is σ = 41969143776. Its totient is φ = 6994118880.

The previous prime is 20983464247. The next prime is 20983464269. The reversal of 20983464258 is 85246438902.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20983464247) and next prime (20983464269).

It is a self number, because there is not a number n which added to its sum of digits gives 20983464258.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47013 + ... + 210183.

It is an arithmetic number, because the mean of its divisors is an integer number (2623071486).

Almost surely, 2^20983464258 is an apocalyptic number.

20983464258 is an abundant number, since it is smaller than the sum of its proper divisors (20985679518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20983464258 is a wasteful number, since it uses less digits than its factorization.

20983464258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184609.

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 20983464258 in words is "twenty billion, nine hundred eighty-three million, four hundred sixty-four thousand, two hundred fifty-eight".