77990011222201 has 16 divisors (see below), whose sum is σ = 88930762994304. Its totient is φ = 67755283893504.

The previous prime is 77990011222199. The next prime is 77990011222223. The reversal of 77990011222201 is 10222211009977.

It is not a de Polignac number, because 77990011222201 - 2¹ = 77990011222199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77990015222201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18733660 + ... + 22515106.

It is an arithmetic number, because the mean of its divisors is an integer number (5558172687144).

Almost surely, 2^{77990011222201} is an apocalyptic number.

It is an amenable number.

77990011222201 is a deficient number, since it is larger than the sum of its proper divisors (10940751772103).

77990011222201 is a wasteful number, since it uses less digits than its factorization.

77990011222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3874800.

The product of its (nonzero) digits is 63504, while the sum is 43.

The spelling of 77990011222201 in words is "seventy-seven trillion, nine hundred ninety billion, eleven million, two hundred twenty-two thousand, two hundred one".