1457666942820 has 192 divisors, whose sum is σ = 4813525785600. Its totient is φ = 325727101440.

The previous prime is 1457666942819. The next prime is 1457666942833. The reversal of 1457666942820 is 282496667541.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 1106850 + ... + 2034809.

It is an arithmetic number, because the mean of its divisors is an integer number (25070446800).

Almost surely, 2^{1457666942820} is an apocalyptic number.

1457666942820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1457666942820 is an abundant number, since it is smaller than the sum of its proper divisors (3355858842780).

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

1457666942820 is a wasteful number, since it uses less digits than its factorization.

1457666942820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3141738 (or 3141736 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 60.

The spelling of 1457666942820 in words is "one trillion, four hundred fifty-seven billion, six hundred sixty-six million, nine hundred forty-two thousand, eight hundred twenty".