740665556131 has 8 divisors (see below), whose sum is σ = 757639331840. Its totient is φ = 723865870728.

The previous prime is 740665556119. The next prime is 740665556171. The reversal of 740665556131 is 131655566047.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-740665556131 is a prime.

It is a super-2 number, since 2×740665556131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (740665556171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43513971 + ... + 43530988.

It is an arithmetic number, because the mean of its divisors is an integer number (94704916480).

Almost surely, 2^740665556131 is an apocalyptic number.

740665556131 is a deficient number, since it is larger than the sum of its proper divisors (16973775709).

740665556131 is a wasteful number, since it uses less digits than its factorization.

740665556131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87045153.

The product of its (nonzero) digits is 2268000, while the sum is 49.

The spelling of 740665556131 in words is "seven hundred forty billion, six hundred sixty-five million, five hundred fifty-six thousand, one hundred thirty-one".