2155667035558 has 4 divisors (see below), whose sum is σ = 3233500553340. Its totient is φ = 1077833517778.

The previous prime is 2155667035493. The next prime is 2155667035591. The reversal of 2155667035558 is 8555307665512.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×2155667035558³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538916758888 + ... + 538916758891.

It is an arithmetic number, because the mean of its divisors is an integer number (808375138335).

Almost surely, 2^{2155667035558} is an apocalyptic number.

2155667035558 is a deficient number, since it is larger than the sum of its proper divisors (1077833517782).

2155667035558 is a wasteful number, since it uses less digits than its factorization.

2155667035558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077833517781.

The product of its (nonzero) digits is 37800000, while the sum is 58.

The spelling of 2155667035558 in words is "two trillion, one hundred fifty-five billion, six hundred sixty-seven million, thirty-five thousand, five hundred fifty-eight".