98156591002 has 4 divisors (see below), whose sum is σ = 147234886506. Its totient is φ = 49078295500.

The previous prime is 98156590963. The next prime is 98156591009. The reversal of 98156591002 is 20019565189.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 50828153401 + 47328437601 = 225451^2 + 217551^2 .

It is not an unprimeable number, because it can be changed into a prime (98156591009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24539147749 + ... + 24539147752.

Almost surely, 2^98156591002 is an apocalyptic number.

98156591002 is a deficient number, since it is larger than the sum of its proper divisors (49078295504).

98156591002 is a wasteful number, since it uses less digits than its factorization.

98156591002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49078295503.

The product of its (nonzero) digits is 194400, while the sum is 46.

The spelling of 98156591002 in words is "ninety-eight billion, one hundred fifty-six million, five hundred ninety-one thousand, two".