80766554 has 16 divisors (see below), whose sum is σ = 132450336. Its totient is φ = 36632400.

The previous prime is 80766551. The next prime is 80766559. The reversal of 80766554 is 45566708.

It is a super-4 number, since 4×80766554⁴ (a number of 33 digits) contains 4444 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80766551) 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, 7064 + ... + 14540.

It is an arithmetic number, because the mean of its divisors is an integer number (8278146).

Almost surely, 2^80766554 is an apocalyptic number.

80766554 is a deficient number, since it is larger than the sum of its proper divisors (51683782).

80766554 is a wasteful number, since it uses less digits than its factorization.

80766554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7981.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 80766554 is about 8987.0214198031. The cubic root of 80766554 is about 432.2588076824.

The spelling of 80766554 in words is "eighty million, seven hundred sixty-six thousand, five hundred fifty-four".