401216051142 has 20 divisors (see below), whose sum is σ = 899021151996. Its totient is φ = 133738683660.

The previous prime is 401216051081. The next prime is 401216051143. The reversal of 401216051142 is 241150612104.

401216051142 is a `hidden beast` number, since 4 + 0 + 1 + 2 + 1 + 605 + 11 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401216051143) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1238320984 + ... + 1238321307.

Almost surely, 2^401216051142 is an apocalyptic number.

401216051142 is an abundant number, since it is smaller than the sum of its proper divisors (497805100854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401216051142 is a wasteful number, since it uses less digits than its factorization.

401216051142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476642305 (or 2476642296 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 401216051142 its reverse (241150612104), we get a palindrome (642366663246).

The spelling of 401216051142 in words is "four hundred one billion, two hundred sixteen million, fifty-one thousand, one hundred forty-two".