22157256657746 has 64 divisors (see below), whose sum is σ = 40209556045824. Its totient is φ = 8956799251200.

The previous prime is 22157256657661. The next prime is 22157256657751. The reversal of 22157256657746 is 64775665275122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2662295 + ... + 7169541.

It is an arithmetic number, because the mean of its divisors is an integer number (628274313216).

Almost surely, 2^{22157256657746} is an apocalyptic number.

22157256657746 is a deficient number, since it is larger than the sum of its proper divisors (18052299388078).

22157256657746 is a wasteful number, since it uses less digits than its factorization.

22157256657746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4507575.

The product of its digits is 296352000, while the sum is 65.

The spelling of 22157256657746 in words is "twenty-two trillion, one hundred fifty-seven billion, two hundred fifty-six million, six hundred fifty-seven thousand, seven hundred forty-six".