5991661454 has 8 divisors (see below), whose sum is σ = 9034060080. Its totient is φ = 2980308096.

The previous prime is 5991661447. The next prime is 5991661463. The reversal of 5991661454 is 4541661995.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7760834 + ... + 7761605.

It is an arithmetic number, because the mean of its divisors is an integer number (1129257510).

Almost surely, 2^5991661454 is an apocalyptic number.

5991661454 is a deficient number, since it is larger than the sum of its proper divisors (3042398626).

5991661454 is a wasteful number, since it uses less digits than its factorization.

5991661454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15522634.

The product of its digits is 1166400, while the sum is 50.

The square root of 5991661454 is about 77405.8231272041. The cubic root of 5991661454 is about 1816.2784168130.

The spelling of 5991661454 in words is "five billion, nine hundred ninety-one million, six hundred sixty-one thousand, four hundred fifty-four".