155452143450 has 48 divisors (see below), whose sum is σ = 387458683200. Its totient is φ = 41245585920.

The previous prime is 155452143443. The next prime is 155452143467. The reversal of 155452143450 is 54341254551.

It is a junction number, because it is equal to n+sod(n) for n = 155452143399 and 155452143408.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2574039 + ... + 2633738.

It is an arithmetic number, because the mean of its divisors is an integer number (8072055900).

Almost surely, 2^155452143450 is an apocalyptic number.

155452143450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155452143450 is an abundant number, since it is smaller than the sum of its proper divisors (232006539750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155452143450 is a wasteful number, since it uses less digits than its factorization.

155452143450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5207991 (or 5207986 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 155452143450 in words is "one hundred fifty-five billion, four hundred fifty-two million, one hundred forty-three thousand, four hundred fifty".