240166326077421 has 16 divisors (see below), whose sum is σ = 328772533884480. Its totient is φ = 155853131607680.

The previous prime is 240166326077413. The next prime is 240166326077429. The reversal of 240166326077421 is 124770623661042.

It is an interprime number because it is at equal distance from previous prime (240166326077413) and next prime (240166326077429).

It is a cyclic number.

It is not a de Polignac number, because 240166326077421 - 2³ = 240166326077413 is a prime.

It is a super-2 number, since 2×240166326077421² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240166326077429) 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, 2203751106 + ... + 2203860083.

It is an arithmetic number, because the mean of its divisors is an integer number (20548283367780).

Almost surely, 2^{240166326077421} is an apocalyptic number.

It is an amenable number.

240166326077421 is a deficient number, since it is larger than the sum of its proper divisors (88606207807059).

240166326077421 is a wasteful number, since it uses less digits than its factorization.

240166326077421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4407611676.

The product of its (nonzero) digits is 4064256, while the sum is 51.

The spelling of 240166326077421 in words is "two hundred forty trillion, one hundred sixty-six billion, three hundred twenty-six million, seventy-seven thousand, four hundred twenty-one".