1501800860664 has 192 divisors, whose sum is σ = 4430245747200. Its totient is φ = 456847776000.

The previous prime is 1501800860657. The next prime is 1501800860671. The reversal of 1501800860664 is 4660680081051.

1501800860664 is a `hidden beast` number, since 1 + 501 + 8 + 0 + 0 + 86 + 0 + 6 + 64 = 666.

It is an interprime number because it is at equal distance from previous prime (1501800860657) and next prime (1501800860671).

It is a super-2 number, since 2×1501800860664² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29796717 + ... + 29847075.

It is an arithmetic number, because the mean of its divisors is an integer number (23074196600).

Almost surely, 2^{1501800860664} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1501800860664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2215122873600).

1501800860664 is an abundant number, since it is smaller than the sum of its proper divisors (2928444886536).

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

1501800860664 is a wasteful number, since it uses less digits than its factorization.

1501800860664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50746 (or 50739 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 1501800860664 in words is "one trillion, five hundred one billion, eight hundred million, eight hundred sixty thousand, six hundred sixty-four".