65947070660 has 48 divisors (see below), whose sum is σ = 144678707712. Its totient is φ = 25220313600.

The previous prime is 65947070639. The next prime is 65947070681. The reversal of 65947070660 is 6607074956.

It is an interprime number because it is at equal distance from previous prime (65947070639) and next prime (65947070681).

It is a super-2 number, since 2×65947070660² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65947070599 and 65947070608.

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, 589301 + ... + 692220.

It is an arithmetic number, because the mean of its divisors is an integer number (3014139744).

Almost surely, 2^65947070660 is an apocalyptic number.

It is an amenable number.

65947070660 is an abundant number, since it is smaller than the sum of its proper divisors (78731637052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65947070660 is a wasteful number, since it uses less digits than its factorization.

65947070660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281644 (or 1281642 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 65947070660 in words is "sixty-five billion, nine hundred forty-seven million, seventy thousand, six hundred sixty".