1466415661620 has 192 divisors, whose sum is σ = 5216510509056. Its totient is φ = 299416988160.

The previous prime is 1466415661523. The next prime is 1466415661639. The reversal of 1466415661620 is 261665146641.

It is a self number, because there is not a number n which added to its sum of digits gives 1466415661620.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4162584 + ... + 4501103.

It is an arithmetic number, because the mean of its divisors is an integer number (27169325568).

Almost surely, 2^{1466415661620} is an apocalyptic number.

1466415661620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1466415661620 is an abundant number, since it is smaller than the sum of its proper divisors (3750094847436).

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

1466415661620 is a wasteful number, since it uses less digits than its factorization.

1466415661620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8663750 (or 8663748 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 1466415661620 in words is "one trillion, four hundred sixty-six billion, four hundred fifteen million, six hundred sixty-one thousand, six hundred twenty".