155145521470 has 16 divisors (see below), whose sum is σ = 284531032800. Its totient is φ = 60887298784.

The previous prime is 155145521449. The next prime is 155145521477. The reversal of 155145521470 is 74125541551.

It is a happy number.

155145521470 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155145521477) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 146363170 + ... + 146364229.

It is an arithmetic number, because the mean of its divisors is an integer number (17783189550).

Almost surely, 2^155145521470 is an apocalyptic number.

155145521470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155145521470 is a deficient number, since it is larger than the sum of its proper divisors (129385511330).

155145521470 is a wasteful number, since it uses less digits than its factorization.

155145521470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292727459.

The product of its (nonzero) digits is 140000, while the sum is 40.

The spelling of 155145521470 in words is "one hundred fifty-five billion, one hundred forty-five million, five hundred twenty-one thousand, four hundred seventy".