11662670648 has 8 divisors (see below), whose sum is σ = 21867507480. Its totient is φ = 5831335320.

The previous prime is 11662670647. The next prime is 11662670659. The reversal of 11662670648 is 84607626611.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11662670647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728916908 + ... + 728916923.

It is an arithmetic number, because the mean of its divisors is an integer number (2733438435).

Almost surely, 2^11662670648 is an apocalyptic number.

It is an amenable number.

11662670648 is a deficient number, since it is larger than the sum of its proper divisors (10204836832).

11662670648 is a wasteful number, since it uses less digits than its factorization.

11662670648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457833837 (or 1457833833 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 11662670648 in words is "eleven billion, six hundred sixty-two million, six hundred seventy thousand, six hundred forty-eight".