7770545440166 has 16 divisors (see below), whose sum is σ = 11776928567040. Its totient is φ = 3844909029120.

The previous prime is 7770545440111. The next prime is 7770545440193. The reversal of 7770545440166 is 6610445450777.

It is a super-2 number, since 2×7770545440166² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 816056 + ... + 4025796.

It is an arithmetic number, because the mean of its divisors is an integer number (736058035440).

Almost surely, 2^{7770545440166} is an apocalyptic number.

7770545440166 is a deficient number, since it is larger than the sum of its proper divisors (4006383126874).

7770545440166 is a wasteful number, since it uses less digits than its factorization.

7770545440166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3222319.

The product of its (nonzero) digits is 19756800, while the sum is 56.

The spelling of 7770545440166 in words is "seven trillion, seven hundred seventy billion, five hundred forty-five million, four hundred forty thousand, one hundred sixty-six".