154242320455 has 16 divisors (see below), whose sum is σ = 187664579424. Its totient is φ = 121687050240.

The previous prime is 154242320423. The next prime is 154242320461. The reversal of 154242320455 is 554023242451.

It is not a de Polignac number, because 154242320455 - 2⁵ = 154242320423 is a prime.

It is a super-2 number, since 2×154242320455² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 429597 + ... + 702166.

It is an arithmetic number, because the mean of its divisors is an integer number (11729036214).

Almost surely, 2^154242320455 is an apocalyptic number.

154242320455 is a deficient number, since it is larger than the sum of its proper divisors (33422258969).

154242320455 is a wasteful number, since it uses less digits than its factorization.

154242320455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132146.

The product of its (nonzero) digits is 192000, while the sum is 37.

The spelling of 154242320455 in words is "one hundred fifty-four billion, two hundred forty-two million, three hundred twenty thousand, four hundred fifty-five".