4155121124454 has 32 divisors (see below), whose sum is σ = 8325839404800. Its totient is φ = 1382441808800.

The previous prime is 4155121124449. The next prime is 4155121124461. The reversal of 4155121124454 is 4544211215514.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 17604784 + ... + 17839244.

It is an arithmetic number, because the mean of its divisors is an integer number (260182481400).

Almost surely, 2^{4155121124454} is an apocalyptic number.

4155121124454 is an abundant number, since it is smaller than the sum of its proper divisors (4170718280346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4155121124454 is a wasteful number, since it uses less digits than its factorization.

4155121124454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239996.

The product of its digits is 128000, while the sum is 39.

Adding to 4155121124454 its reverse (4544211215514), we get a palindrome (8699332339968).

The spelling of 4155121124454 in words is "four trillion, one hundred fifty-five billion, one hundred twenty-one million, one hundred twenty-four thousand, four hundred fifty-four".