115201611550 has 24 divisors (see below), whose sum is σ = 214312176000. Its totient is φ = 46072649280.

The previous prime is 115201611541. The next prime is 115201611611. The reversal of 115201611550 is 55116102511.

It is a super-2 number, since 2×115201611550² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95491 + ... + 489409.

It is an arithmetic number, because the mean of its divisors is an integer number (8929674000).

Almost surely, 2^115201611550 is an apocalyptic number.

115201611550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115201611550 is a deficient number, since it is larger than the sum of its proper divisors (99110564450).

115201611550 is a wasteful number, since it uses less digits than its factorization.

115201611550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399780 (or 399775 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 28.

The spelling of 115201611550 in words is "one hundred fifteen billion, two hundred one million, six hundred eleven thousand, five hundred fifty".