261674360177096 has 8 divisors (see below), whose sum is σ = 490639425332070. Its totient is φ = 130837180088544.

The previous prime is 261674360177081. The next prime is 261674360177137. The reversal of 261674360177096 is 690771063476162.

It can be written as a sum of positive squares in only one way, i.e., 177760515974596 + 83913844202500 = 13332686^2 + 9160450^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16354647511061 + ... + 16354647511076.

Almost surely, 2^{261674360177096} is an apocalyptic number.

It is an amenable number.

261674360177096 is a deficient number, since it is larger than the sum of its proper divisors (228965065154974).

261674360177096 is a wasteful number, since it uses less digits than its factorization.

261674360177096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32709295022143 (or 32709295022139 counting only the distinct ones).

The product of its (nonzero) digits is 96018048, while the sum is 65.

The spelling of 261674360177096 in words is "two hundred sixty-one trillion, six hundred seventy-four billion, three hundred sixty million, one hundred seventy-seven thousand, ninety-six".