1995581697004 has 48 divisors (see below), whose sum is σ = 4005635542272. Its totient is φ = 852153561792.

The previous prime is 1995581696993. The next prime is 1995581697013. The reversal of 1995581697004 is 4007961855991.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8739739 + ... + 8965165.

It is an arithmetic number, because the mean of its divisors is an integer number (83450740464).

Almost surely, 2^{1995581697004} is an apocalyptic number.

1995581697004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1995581697004 is an abundant number, since it is smaller than the sum of its proper divisors (2010053845268).

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

1995581697004 is a wasteful number, since it uses less digits than its factorization.

1995581697004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226582 (or 226580 counting only the distinct ones).

The product of its (nonzero) digits is 24494400, while the sum is 64.

The spelling of 1995581697004 in words is "one trillion, nine hundred ninety-five billion, five hundred eighty-one million, six hundred ninety-seven thousand, four".