3661120731754 has 8 divisors (see below), whose sum is σ = 5608525376448. Its totient is φ = 1791612272940.

The previous prime is 3661120731607. The next prime is 3661120731761. The reversal of 3661120731754 is 4571370211663.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19474046352 + ... + 19474046539.

It is an arithmetic number, because the mean of its divisors is an integer number (701065672056).

Almost surely, 2^{3661120731754} is an apocalyptic number.

3661120731754 is a deficient number, since it is larger than the sum of its proper divisors (1947404644694).

3661120731754 is a wasteful number, since it uses less digits than its factorization.

3661120731754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38948092940.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 3661120731754 in words is "three trillion, six hundred sixty-one billion, one hundred twenty million, seven hundred thirty-one thousand, seven hundred fifty-four".