120766181487 has 32 divisors (see below), whose sum is σ = 192096705024. Its totient is φ = 66043382400.

The previous prime is 120766181399. The next prime is 120766181509. The reversal of 120766181487 is 784181667021.

It is not a de Polignac number, because 120766181487 - 2⁷ = 120766181359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120766181287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1226589 + ... + 1321382.

It is an arithmetic number, because the mean of its divisors is an integer number (6003022032).

Almost surely, 2^120766181487 is an apocalyptic number.

120766181487 is a deficient number, since it is larger than the sum of its proper divisors (71330523537).

120766181487 is a wasteful number, since it uses less digits than its factorization.

120766181487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548079.

The product of its (nonzero) digits is 903168, while the sum is 51.

It can be divided in two parts, 120766 and 181487, that added together give a triangular number (302253 = T₇₇₇).

The spelling of 120766181487 in words is "one hundred twenty billion, seven hundred sixty-six million, one hundred eighty-one thousand, four hundred eighty-seven".