2151156466066 has 16 divisors (see below), whose sum is σ = 3256966765440. Its totient is φ = 1065501344880.

The previous prime is 2151156466051. The next prime is 2151156466073. The reversal of 2151156466066 is 6606646511512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12090640 + ... + 12267268.

It is an arithmetic number, because the mean of its divisors is an integer number (203560422840).

Almost surely, 2^{2151156466066} is an apocalyptic number.

2151156466066 is a deficient number, since it is larger than the sum of its proper divisors (1105810299374).

2151156466066 is a wasteful number, since it uses less digits than its factorization.

2151156466066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233649.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 2151156466066 in words is "two trillion, one hundred fifty-one billion, one hundred fifty-six million, four hundred sixty-six thousand, sixty-six".