20091657022 has 16 divisors (see below), whose sum is σ = 30180902400. Its totient is φ = 10031369688.

The previous prime is 20091656971. The next prime is 20091657023. The reversal of 20091657022 is 22075619002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20091657023) 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, 6342483 + ... + 6345649.

It is an arithmetic number, because the mean of its divisors is an integer number (1886306400).

Almost surely, 2^20091657022 is an apocalyptic number.

20091657022 is a deficient number, since it is larger than the sum of its proper divisors (10089245378).

20091657022 is a wasteful number, since it uses less digits than its factorization.

20091657022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6735.

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 20091657022 in words is "twenty billion, ninety-one million, six hundred fifty-seven thousand, twenty-two".