4661215224640 has 112 divisors (see below), whose sum is σ = 12338919452160. Its totient is φ = 1665545840640.

The previous prime is 4661215224599. The next prime is 4661215224643. The reversal of 4661215224640 is 464225121664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4661215224643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17943370 + ... + 18201289.

It is an arithmetic number, because the mean of its divisors is an integer number (110168923680).

Almost surely, 2^{4661215224640} is an apocalyptic number.

4661215224640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4661215224640 is an abundant number, since it is smaller than the sum of its proper divisors (7677704227520).

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

4661215224640 is a wasteful number, since it uses less digits than its factorization.

4661215224640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36144720 (or 36144710 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 4661215224640 in words is "four trillion, six hundred sixty-one billion, two hundred fifteen million, two hundred twenty-four thousand, six hundred forty".