2135556672722 has 16 divisors (see below), whose sum is σ = 3517689985344. Its totient is φ = 964279050000.

The previous prime is 2135556672679. The next prime is 2135556672793. The reversal of 2135556672722 is 2272766555312.

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, 321423029 + ... + 321429672.

It is an arithmetic number, because the mean of its divisors is an integer number (219855624084).

Almost surely, 2^{2135556672722} is an apocalyptic number.

2135556672722 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2135556672722 is a deficient number, since it is larger than the sum of its proper divisors (1382133312622).

2135556672722 is a wasteful number, since it uses less digits than its factorization.

2135556672722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642852865.

The product of its digits is 10584000, while the sum is 53.

The spelling of 2135556672722 in words is "two trillion, one hundred thirty-five billion, five hundred fifty-six million, six hundred seventy-two thousand, seven hundred twenty-two".