40665428960 has 72 divisors (see below), whose sum is σ = 104030778600. Its totient is φ = 15014917632.

The previous prime is 40665428953. The next prime is 40665429001. The reversal of 40665428960 is 6982456604.

It is a super-2 number, since 2×40665428960² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40665428899 and 40665428908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 724910 + ... + 778989.

It is an arithmetic number, because the mean of its divisors is an integer number (1444871925).

Almost surely, 2^40665428960 is an apocalyptic number.

40665428960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40665428960 is an abundant number, since it is smaller than the sum of its proper divisors (63365349640).

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

40665428960 is a wasteful number, since it uses less digits than its factorization.

40665428960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503940 (or 1503919 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 50.

The spelling of 40665428960 in words is "forty billion, six hundred sixty-five million, four hundred twenty-eight thousand, nine hundred sixty".