20194476554 has 16 divisors (see below), whose sum is σ = 34699435776. Its totient is φ = 8634692400.

The previous prime is 20194476541. The next prime is 20194476563. The reversal of 20194476554 is 45567449102.

It is a junction number, because it is equal to n+sod(n) for n = 20194476499 and 20194476508.

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, 1667357 + ... + 1679424.

It is an arithmetic number, because the mean of its divisors is an integer number (2168714736).

Almost surely, 2^20194476554 is an apocalyptic number.

20194476554 is a deficient number, since it is larger than the sum of its proper divisors (14504959222).

20194476554 is a wasteful number, since it uses less digits than its factorization.

20194476554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3347221.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 20194476554 in words is "twenty billion, one hundred ninety-four million, four hundred seventy-six thousand, five hundred fifty-four".