2155012015006 has 4 divisors (see below), whose sum is σ = 3232518022512. Its totient is φ = 1077506007502.

The previous prime is 2155012014997. The next prime is 2155012015049. The reversal of 2155012015006 is 6005102105512.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538753003750 + ... + 538753003753.

It is an arithmetic number, because the mean of its divisors is an integer number (808129505628).

Almost surely, 2^{2155012015006} is an apocalyptic number.

2155012015006 is a deficient number, since it is larger than the sum of its proper divisors (1077506007506).

2155012015006 is a wasteful number, since it uses less digits than its factorization.

2155012015006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077506007505.

The product of its (nonzero) digits is 3000, while the sum is 28.

The spelling of 2155012015006 in words is "two trillion, one hundred fifty-five billion, twelve million, fifteen thousand, six".