155003606663642 has 32 divisors (see below), whose sum is σ = 255230541756864. Its totient is φ = 70016144428800.

The previous prime is 155003606663641. The next prime is 155003606663683. The reversal of 155003606663642 is 246366606300551.

155003606663642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×155003606663642² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155003606663641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25983983 + ... + 31387490.

It is an arithmetic number, because the mean of its divisors is an integer number (7975954429902).

Almost surely, 2^{155003606663642} is an apocalyptic number.

155003606663642 is a deficient number, since it is larger than the sum of its proper divisors (100226935093222).

155003606663642 is a wasteful number, since it uses less digits than its factorization.

155003606663642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57372254.

The product of its (nonzero) digits is 13996800, while the sum is 53.

The spelling of 155003606663642 in words is "one hundred fifty-five trillion, three billion, six hundred six million, six hundred sixty-three thousand, six hundred forty-two".