155242114450 has 24 divisors (see below), whose sum is σ = 301304697408. Its totient is φ = 59396982480.

The previous prime is 155242114399. The next prime is 155242114459. The reversal of 155242114450 is 54411242551.

It is a super-2 number, since 2×155242114450² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155242114459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67495422 + ... + 67497721.

It is an arithmetic number, because the mean of its divisors is an integer number (12554362392).

Almost surely, 2^155242114450 is an apocalyptic number.

155242114450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155242114450 is a deficient number, since it is larger than the sum of its proper divisors (146062582958).

155242114450 is a wasteful number, since it uses less digits than its factorization.

155242114450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134993178 (or 134993173 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 34.

The spelling of 155242114450 in words is "one hundred fifty-five billion, two hundred forty-two million, one hundred fourteen thousand, four hundred fifty".