16121340270777 has 32 divisors (see below), whose sum is σ = 24614790900480. Its totient is φ = 9193844874240.

The previous prime is 16121340270751. The next prime is 16121340270787. The reversal of 16121340270777 is 77707204312161.

It is not a de Polignac number, because 16121340270777 - 2¹⁶ = 16121340205241 is a prime.

It is a super-2 number, since 2×16121340270777² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16121340270787) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177516093 + ... + 177606885.

It is an arithmetic number, because the mean of its divisors is an integer number (769212215640).

Almost surely, 2^{16121340270777} is an apocalyptic number.

It is an amenable number.

16121340270777 is a deficient number, since it is larger than the sum of its proper divisors (8493450629703).

16121340270777 is a wasteful number, since it uses less digits than its factorization.

16121340270777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107553.

The product of its (nonzero) digits is 691488, while the sum is 48.

The spelling of 16121340270777 in words is "sixteen trillion, one hundred twenty-one billion, three hundred forty million, two hundred seventy thousand, seven hundred seventy-seven".