65131953457670 has 32 divisors (see below), whose sum is σ = 128155951927296. Its totient is φ = 23636109733600.

The previous prime is 65131953457631. The next prime is 65131953457691. The reversal of 65131953457670 is 7675435913156.

It is a happy number.

It is a super-2 number, since 2×65131953457670² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 602907974 + ... + 603015993.

It is an arithmetic number, because the mean of its divisors is an integer number (4004873497728).

Almost surely, 2^{65131953457670} is an apocalyptic number.

65131953457670 is a deficient number, since it is larger than the sum of its proper divisors (63023998469626).

65131953457670 is a wasteful number, since it uses less digits than its factorization.

65131953457670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205924476.

The product of its (nonzero) digits is 71442000, while the sum is 62.

The spelling of 65131953457670 in words is "sixty-five trillion, one hundred thirty-one billion, nine hundred fifty-three million, four hundred fifty-seven thousand, six hundred seventy".