655129870 has 8 divisors (see below), whose sum is σ = 1179233784. Its totient is φ = 262051944.

The previous prime is 655129859. The next prime is 655129879. The reversal of 655129870 is 78921556.

655129870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655129879) 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, 32756484 + ... + 32756503.

It is an arithmetic number, because the mean of its divisors is an integer number (147404223).

Almost surely, 2^655129870 is an apocalyptic number.

655129870 is a deficient number, since it is larger than the sum of its proper divisors (524103914).

655129870 is a wasteful number, since it uses less digits than its factorization.

655129870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65512994.

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 655129870 is about 25595.5048787868. The cubic root of 655129870 is about 868.5119540327.

The spelling of 655129870 in words is "six hundred fifty-five million, one hundred twenty-nine thousand, eight hundred seventy".