2660655454 has 8 divisors (see below), whose sum is σ = 4003041528. Its totient is φ = 1326308280.

The previous prime is 2660655449. The next prime is 2660655467. The reversal of 2660655454 is 4545560662.

It is a happy number.

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

It is a super-2 number, since 2×2660655454² = 14158174889799892232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2660655454.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2008897 + ... + 2010220.

It is an arithmetic number, because the mean of its divisors is an integer number (500380191).

Almost surely, 2^2660655454 is an apocalyptic number.

2660655454 is a deficient number, since it is larger than the sum of its proper divisors (1342386074).

2660655454 is a wasteful number, since it uses less digits than its factorization.

2660655454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4019450.

The product of its (nonzero) digits is 864000, while the sum is 43.

The square root of 2660655454 is about 51581.5417954911. The cubic root of 2660655454 is about 1385.6797792510.

The spelling of 2660655454 in words is "two billion, six hundred sixty million, six hundred fifty-five thousand, four hundred fifty-four".