2055742777966 has 16 divisors (see below), whose sum is σ = 3246285548160. Its totient is φ = 973660125240.

The previous prime is 2055742777961. The next prime is 2055742777973. The reversal of 2055742777966 is 6697772475502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055742777961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2799580 + ... + 3456751.

It is an arithmetic number, because the mean of its divisors is an integer number (202892846760).

Almost surely, 2^{2055742777966} is an apocalyptic number.

2055742777966 is a deficient number, since it is larger than the sum of its proper divisors (1190542770194).

2055742777966 is a wasteful number, since it uses less digits than its factorization.

2055742777966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6264999.

The product of its (nonzero) digits is 311169600, while the sum is 67.

The spelling of 2055742777966 in words is "two trillion, fifty-five billion, seven hundred forty-two million, seven hundred seventy-seven thousand, nine hundred sixty-six".