20274123455 has 8 divisors (see below), whose sum is σ = 24337193472. Its totient is φ = 16213801888.

The previous prime is 20274123427. The next prime is 20274123461. The reversal of 20274123455 is 55432147202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20274123455 - 2²⁶ = 20207014591 is a prime.

It is a super-2 number, since 2×20274123455² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 670847 + ... + 700416.

It is an arithmetic number, because the mean of its divisors is an integer number (3042149184).

Almost surely, 2^20274123455 is an apocalyptic number.

20274123455 is a deficient number, since it is larger than the sum of its proper divisors (4063070017).

20274123455 is a wasteful number, since it uses less digits than its factorization.

20274123455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374225.

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

The spelling of 20274123455 in words is "twenty billion, two hundred seventy-four million, one hundred twenty-three thousand, four hundred fifty-five".