40641162612155 has 16 divisors (see below), whose sum is σ = 55772203069440. Its totient is φ = 27850350047712.

The previous prime is 40641162612121. The next prime is 40641162612157. The reversal of 40641162612155 is 55121626114604.

It is a cyclic number.

It is not a de Polignac number, because 40641162612155 - 2³² = 40636867644859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40641162612157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372355979 + ... + 372465108.

It is an arithmetic number, because the mean of its divisors is an integer number (3485762691840).

Almost surely, 2^{40641162612155} is an apocalyptic number.

40641162612155 is a deficient number, since it is larger than the sum of its proper divisors (15131040457285).

40641162612155 is a wasteful number, since it uses less digits than its factorization.

40641162612155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744822658.

The product of its (nonzero) digits is 345600, while the sum is 44.

Adding to 40641162612155 its reverse (55121626114604), we get a palindrome (95762788726759).

The spelling of 40641162612155 in words is "forty trillion, six hundred forty-one billion, one hundred sixty-two million, six hundred twelve thousand, one hundred fifty-five".