261554034413002 has 16 divisors (see below), whose sum is σ = 396102617143200. Its totient is φ = 129523751284720.

The previous prime is 261554034412967. The next prime is 261554034413017. The reversal of 261554034413002 is 200314430455162.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 980512852 + ... + 980779567.

It is an arithmetic number, because the mean of its divisors is an integer number (24756413571450).

Almost surely, 2^{261554034413002} is an apocalyptic number.

261554034413002 is a deficient number, since it is larger than the sum of its proper divisors (134548582730198).

261554034413002 is a wasteful number, since it uses less digits than its factorization.

261554034413002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961293061.

The product of its (nonzero) digits is 345600, while the sum is 40.

Adding to 261554034413002 its reverse (200314430455162), we get a palindrome (461868464868164).

The spelling of 261554034413002 in words is "two hundred sixty-one trillion, five hundred fifty-four billion, thirty-four million, four hundred thirteen thousand, two".