3640454466660 has 72 divisors (see below), whose sum is σ = 12046594787136. Its totient is φ = 882534415680.

The previous prime is 3640454466641. The next prime is 3640454466679. The reversal of 3640454466660 is 666644540463.

It is an interprime number because it is at equal distance from previous prime (3640454466641) and next prime (3640454466679).

It is a junction number, because it is equal to n+sod(n) for n = 3640454466597 and 3640454466606.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 919304704 + ... + 919308663.

It is an arithmetic number, because the mean of its divisors is an integer number (167313816488).

Almost surely, 2^{3640454466660} is an apocalyptic number.

3640454466660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3640454466660 is an abundant number, since it is smaller than the sum of its proper divisors (8406140320476).

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

3640454466660 is a wasteful number, since it uses less digits than its factorization.

3640454466660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838613393 (or 1838613388 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 54.

The spelling of 3640454466660 in words is "three trillion, six hundred forty billion, four hundred fifty-four million, four hundred sixty-six thousand, six hundred sixty".