766401151 has 4 divisors (see below), whose sum is σ = 785093904. Its totient is φ = 747708400.

The previous prime is 766401137. The next prime is 766401173. The reversal of 766401151 is 151104667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151104667 = 7 ⋅21586381.

It is a cyclic number.

It is not a de Polignac number, because 766401151 - 2⁷ = 766401023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766401121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9346315 + ... + 9346396.

It is an arithmetic number, because the mean of its divisors is an integer number (196273476).

Almost surely, 2^766401151 is an apocalyptic number.

766401151 is a deficient number, since it is larger than the sum of its proper divisors (18692753).

766401151 is a wasteful number, since it uses less digits than its factorization.

766401151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18692752.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 766401151 is about 27683.9511450226. The cubic root of 766401151 is about 915.1354576648.

The spelling of 766401151 in words is "seven hundred sixty-six million, four hundred one thousand, one hundred fifty-one".