154251254011211 has 96 divisors (see below), whose sum is σ = 195275608704000. Its totient is φ = 121161488152320.

The previous prime is 154251254011201. The next prime is 154251254011213. The reversal of 154251254011211 is 112110452152451.

It is not a de Polignac number, because 154251254011211 - 2²² = 154251249816907 is a prime.

It is a super-2 number, since 2×154251254011211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154251254011213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1061174765 + ... + 1061320113.

It is an arithmetic number, because the mean of its divisors is an integer number (2034120924000).

Almost surely, 2^{154251254011211} is an apocalyptic number.

154251254011211 is a deficient number, since it is larger than the sum of its proper divisors (41024354692789).

154251254011211 is a wasteful number, since it uses less digits than its factorization.

154251254011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145849 (or 145842 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 35.

The spelling of 154251254011211 in words is "one hundred fifty-four trillion, two hundred fifty-one billion, two hundred fifty-four million, eleven thousand, two hundred eleven".