40145865167402 has 8 divisors (see below), whose sum is σ = 60276203662500. Its totient is φ = 20053797279904.

The previous prime is 40145865167399. The next prime is 40145865167467. The reversal of 40145865167402 is 20476156854104.

It can be written as a sum of positive squares in 2 ways, for example, as 33460336129081 + 6685529038321 = 5784491^2 + 2585639^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40145865167402² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9567649277 + ... + 9567653472.

Almost surely, 2^{40145865167402} is an apocalyptic number.

40145865167402 is a deficient number, since it is larger than the sum of its proper divisors (20130338495098).

40145865167402 is a wasteful number, since it uses less digits than its factorization.

40145865167402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19135303800.

The product of its (nonzero) digits is 6451200, while the sum is 53.

The spelling of 40145865167402 in words is "forty trillion, one hundred forty-five billion, eight hundred sixty-five million, one hundred sixty-seven thousand, four hundred two".