402011500205155 has 8 divisors (see below), whose sum is σ = 503388313300512. Its totient is φ = 307626191461248.

The previous prime is 402011500205141. The next prime is 402011500205167. The reversal of 402011500205155 is 551502005110204.

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

It is a cyclic number.

It is not a de Polignac number, because 402011500205155 - 2⁷ = 402011500205027 is a prime.

It is a super-2 number, since 2×402011500205155² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1747876087734 + ... + 1747876087963.

It is an arithmetic number, because the mean of its divisors is an integer number (62923539162564).

Almost surely, 2^{402011500205155} is an apocalyptic number.

402011500205155 is a deficient number, since it is larger than the sum of its proper divisors (101376813095357).

402011500205155 is a wasteful number, since it uses less digits than its factorization.

402011500205155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3495752175725.

The product of its (nonzero) digits is 10000, while the sum is 31.

Adding to 402011500205155 its reverse (551502005110204), we get a palindrome (953513505315359).

The spelling of 402011500205155 in words is "four hundred two trillion, eleven billion, five hundred million, two hundred five thousand, one hundred fifty-five".