155641061503 has 4 divisors (see below), whose sum is σ = 164796418080. Its totient is φ = 146485704928.

The previous prime is 155641061497. The next prime is 155641061519. The reversal of 155641061503 is 305160146551.

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 155641061503 - 2¹³ = 155641053311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155641361503) 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, 4577678263 + ... + 4577678296.

It is an arithmetic number, because the mean of its divisors is an integer number (41199104520).

Almost surely, 2^155641061503 is an apocalyptic number.

155641061503 is a deficient number, since it is larger than the sum of its proper divisors (9155356577).

155641061503 is an equidigital number, since it uses as much as digits as its factorization.

155641061503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9155356576.

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 155641061503 in words is "one hundred fifty-five billion, six hundred forty-one million, sixty-one thousand, five hundred three".