311102050664 has 8 divisors (see below), whose sum is σ = 583316345010. Its totient is φ = 155551025328.

The previous prime is 311102050661. The next prime is 311102050669. The reversal of 311102050664 is 466050201113.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 304759202500 + 6342848164 = 552050^2 + 79642^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×311102050664³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (311102050661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19443878159 + ... + 19443878174.

Almost surely, 2^311102050664 is an apocalyptic number.

It is an amenable number.

311102050664 is a deficient number, since it is larger than the sum of its proper divisors (272214294346).

311102050664 is a wasteful number, since it uses less digits than its factorization.

311102050664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38887756339 (or 38887756335 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 311102050664 its reverse (466050201113), we get a palindrome (777152251777).

The spelling of 311102050664 in words is "three hundred eleven billion, one hundred two million, fifty thousand, six hundred sixty-four".