11952897660 has 72 divisors (see below), whose sum is σ = 39553231536. Its totient is φ = 2897671680.

The previous prime is 11952897631. The next prime is 11952897667. The reversal of 11952897660 is 6679825911.

It is a junction number, because it is equal to n+sod(n) for n = 11952897597 and 11952897606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11952897667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3016429 + ... + 3020388.

It is an arithmetic number, because the mean of its divisors is an integer number (549350438).

Almost surely, 2^11952897660 is an apocalyptic number.

11952897660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11952897660 is an abundant number, since it is smaller than the sum of its proper divisors (27600333876).

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

11952897660 is a wasteful number, since it uses less digits than its factorization.

11952897660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6036843 (or 6036838 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 11952897660 in words is "eleven billion, nine hundred fifty-two million, eight hundred ninety-seven thousand, six hundred sixty".