155477651203 has 4 divisors (see below), whose sum is σ = 177688744240. Its totient is φ = 133266558168.

The previous prime is 155477651159. The next prime is 155477651207. The reversal of 155477651203 is 302156774551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155477651203 - 2¹⁷ = 155477520131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155477651207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11105546508 + ... + 11105546521.

It is an arithmetic number, because the mean of its divisors is an integer number (44422186060).

Almost surely, 2^155477651203 is an apocalyptic number.

155477651203 is a deficient number, since it is larger than the sum of its proper divisors (22211093037).

155477651203 is an equidigital number, since it uses as much as digits as its factorization.

155477651203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22211093036.

The product of its (nonzero) digits is 882000, while the sum is 46.

The spelling of 155477651203 in words is "one hundred fifty-five billion, four hundred seventy-seven million, six hundred fifty-one thousand, two hundred three".