102152187668 has 12 divisors (see below), whose sum is σ = 178769373972. Its totient is φ = 51075223680.

The previous prime is 102152187661. The next prime is 102152187679. The reversal of 102152187668 is 866781251201.

It can be written as a sum of positive squares in 2 ways, for example, as 20894124304 + 81258063364 = 144548^2 + 285058^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102152187661) 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, 97196 + ... + 462332.

It is an arithmetic number, because the mean of its divisors is an integer number (14897447831).

Almost surely, 2^102152187668 is an apocalyptic number.

It is an amenable number.

102152187668 is a deficient number, since it is larger than the sum of its proper divisors (76617186304).

102152187668 is a wasteful number, since it uses less digits than its factorization.

102152187668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435082 (or 435080 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 47.

The spelling of 102152187668 in words is "one hundred two billion, one hundred fifty-two million, one hundred eighty-seven thousand, six hundred sixty-eight".