20154065622 has 16 divisors (see below), whose sum is σ = 40315961520. Its totient is φ = 6716716832.

The previous prime is 20154065621. The next prime is 20154065639. The reversal of 20154065622 is 22656045102.

It is a super-2 number, since 2×20154065622² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20154065621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292533 + ... + 354800.

It is an arithmetic number, because the mean of its divisors is an integer number (2519747595).

Almost surely, 2^20154065622 is an apocalyptic number.

20154065622 is an abundant number, since it is smaller than the sum of its proper divisors (20161895898).

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

20154065622 is a wasteful number, since it uses less digits than its factorization.

20154065622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652527.

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 20154065622 in words is "twenty billion, one hundred fifty-four million, sixty-five thousand, six hundred twenty-two".