736318670121 has 12 divisors (see below), whose sum is σ = 1071334709172. Its totient is φ = 487296053376.

The previous prime is 736318670107. The next prime is 736318670147. The reversal of 736318670121 is 121076813637.

736318670121 is a `hidden beast` number, since 7 + 3 + 631 + 8 + 6 + 7 + 0 + 1 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 149509048896 + 586809621225 = 386664^2 + 766035^2 .

It is not a de Polignac number, because 736318670121 - 2⁷ = 736318669993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (736318680121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 298587036 + ... + 298589501.

It is an arithmetic number, because the mean of its divisors is an integer number (89277892431).

Almost surely, 2^736318670121 is an apocalyptic number.

It is an amenable number.

736318670121 is a deficient number, since it is larger than the sum of its proper divisors (335016039051).

736318670121 is a wasteful number, since it uses less digits than its factorization.

736318670121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597176680 (or 597176677 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 736318670121 in words is "seven hundred thirty-six billion, three hundred eighteen million, six hundred seventy thousand, one hundred twenty-one".