5991706353990 has 48 divisors (see below), whose sum is σ = 16727865906672. Its totient is φ = 1369532880576.

The previous prime is 5991706353973. The next prime is 5991706354001. The reversal of 5991706353990 is 993536071995.

It is a happy number.

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2037993889 + ... + 2037996828.

It is an arithmetic number, because the mean of its divisors is an integer number (348497206389).

Almost surely, 2^{5991706353990} is an apocalyptic number.

5991706353990 is an abundant number, since it is smaller than the sum of its proper divisors (10736159552682).

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

5991706353990 is a wasteful number, since it uses less digits than its factorization.

5991706353990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4075990741 (or 4075990734 counting only the distinct ones).

The product of its (nonzero) digits is 62001450, while the sum is 66.

The spelling of 5991706353990 in words is "five trillion, nine hundred ninety-one billion, seven hundred six million, three hundred fifty-three thousand, nine hundred ninety".