2251206036066 has 64 divisors (see below), whose sum is σ = 5116073719680. Its totient is φ = 654663098880.

The previous prime is 2251206036011. The next prime is 2251206036071. The reversal of 2251206036066 is 6606306021522.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1180155 + ... + 2427998.

It is an arithmetic number, because the mean of its divisors is an integer number (79938651870).

Almost surely, 2^{2251206036066} is an apocalyptic number.

2251206036066 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2251206036066 is an abundant number, since it is smaller than the sum of its proper divisors (2864867683614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2251206036066 is a wasteful number, since it uses less digits than its factorization.

2251206036066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3608611.

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 2251206036066 in words is "two trillion, two hundred fifty-one billion, two hundred six million, thirty-six thousand, sixty-six".